Uranium-lead dating computes the age of the earth at 4.54 billion years old with less than 1% margin of error. It is one of the oldest and most refined radiometric dating schemes, with a routine age range of about 1 million years to over 4.5 billion years. Read more

“The master in the art of living makes little distinction between his work and his play, his labor and his leisure, his mind and his body, his information and his recreation, his love and his religion. He hardly knows which is which. He simply pursues his vision of excellence at whatever he does, leaving others to decide whether he is working or playing. To him he's always doing both.”